Microsoft has something big planned, and it should shake up the world of Windows Phone 7. Sitting in TNWmicrosoft’s hot little inbox is a fresh invite from Microsoft to an event later this month, on May 24th.

Called a “VIP Preview,” the event promises to “lift the curtain on the next major release of Windows Phone.” Check out the invite:

We are searching for comment from Microsoft on the matter and will update this post when it is received. Two events are planned, one in London and one in NYC. TNWmicrosoft will be attending.